OpenSearch

Using the NASA EOSDIS Common Metadata Repository

Collection Search

  • Browse products of ERS_SAR Precision Image (PRI) data

    https://cmr.earthdata.nasa.gov/search/concepts/C1214585754-SCIOPS.xml
    Description:

    This data set comprises low-resolution browse products of system-corrected , high precision processed ERS_SAR data (PRI) of the European Remote Sensing Satellite (ERS-1); on-line access is offered by means of the Intelligent Satellite Data Information System ISIS, a service of the DFD within DLR at Oberpfaffenhofen, Germany. Description of the offered PRI data set: The ERS_SAR Precision Image data set is a multi-look, ground range projected, system-corrected digital image. Hence, it is the basic product for most users interested in remote sensing applications. The image is not geocoded or corrected for terrain distortion. Original data are processed and stored at DFD. They have been downscaled for distribution as browse image. Total image size of such scene is about 100 km square, with ca. 100 m pixel spacing. The volume of a scene is about 1 MByte. Access to the data: On-line access to data and information is provided by the Intelligent Satellite Data Information System ISIS, developed by DLR as a client / server configuration. It is representing the interface of DLR-DFD to users, providing an easy access to catalogue-, inventory-, browse- and general textual information. The URl is: 'http://isis.dlr.de/'. Relevant procedures to access this system are described in a separate entry in the catagory `Data Center` and may be queried by interested people. Access presumes the installation of the client configuration which can be easily done by the user on his computer configuration. Original digital products have to be ordered at: Eurimage ERS Customer Services ESRIN Via Galileo Galilei 00044 Frascati Italy Tel. No.: +39-6-94180-776/752/770 Fax. No.: +39-6-9416772

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -85 -180 85 180

    SCIOPS Short Name: DFD-ERS.SAR.PRI.DQL Version ID: Not provided Unique ID: C1214585754-SCIOPS

  • Browse products of ERS_SAR Terrain Geocoded Image data.

    https://cmr.earthdata.nasa.gov/search/concepts/C1214585765-SCIOPS.xml
    Description:

    This data set comprises low-resolution browse products of system corrected , geocoded and terrain corrected ERS_SAR data (GTC) of the European Remote Sensing Satellite (ERS-1); on-line access is offered by means of the Intelligent Satellite Data Information System ISIS, a service of the DFD within DLR at Oberpfaffenhofen, Germany. Description of the offered GTC data set: The ERS_SAR Terrain Geocoded Image dataset is a multi-look, ground range projected, system-corrected digital image. Furthermore, it is precisely located and rectified onto a map projection, as well as corrected for terrain distortion. Currently, it is presently the highest level SAR image product and is intended for Users interested in remote sensing applications in hilly terrain and where the geometry of the image is important. The cartographic reference system is UTM for latitudes within -80 deg and +84 deg., all else with UPS system. The ellipsoid is WGS 1984. Resampling is performed by Cubic Convolution. Original data are processed and stored at DFD. They have been downscaled for distribution as browse image. Total image size of such scene is about 100 km square, with ca. 100 m pixel spacing. The volume of a scene is about 1 MByte.. Access to the data: On-line access to data and information is provided by the Intelligent Satellite Data Information System ISIS, developed by DLR as a client / server configuration. It is representing the interface of DLR-DFD to users, providing an easy access to catalogue-, inventory-, browse- and general textual information. The URl is: 'http://isis.dlr.de/'. Relevant procedures to access this system are described in a separate entry in the catagory `Data Center` and may be queried by interested people. Access presumes the installation of the client configuration which can be easily done by the user on his computer configuration. Original digital products have to be ordered at: Eurimage ERS Customer Services ESRIN Via Galileo Galilei 00044 Frascati Italy Tel. No.: +39-6-94180-776/752/770 Fax. No.: +39-6-9416772

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -85 -180 85 180

    SCIOPS Short Name: DFD-ERS.SAR.GTC.DQL Version ID: Not provided Unique ID: C1214585765-SCIOPS

  • Burnt Areas in Central Africa

    https://cmr.earthdata.nasa.gov/search/concepts/C1214155421-SCIOPS.xml
    Description:

    The Fire Product: Burnt Areas in Central Africa was part of the International Geosphere-Biosphere Programme Data and Information System (IGBP-DIS) Regional Satellite Fire Data Compilation CD-ROM. Three hundred and ten Along Track Scanning Radiometer (ATSR-1) data over Central Africa were used to detect areas affected by burning during the 1994-1995 dry season. An algorithm was developed to detect areas where over 50% of the pixel had burnt. The general features of the data show the movement of burnt areas south across Central Africa as the dry season progresses. The data set provided consists of a raster image of Central Africa. Each value in the raster image relates a point where burnt areas were detected within the period 15 October 1994 to 10 March 1995. See also: http://www.gvm.sai.jrc.it/

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -2 11 14 33

    SCIOPS Short Name: IGBP-DIS_FIRE_CAFRICA Version ID: Not provided Unique ID: C1214155421-SCIOPS

  • CDDIS_SLR_data

    https://cmr.earthdata.nasa.gov/search/concepts/C1000000041-CDDIS.xml
    Description:

    In Satellite Laser Ranging (SLR), a short pulse of coherent light generated by a laser (Light Amplification by Stimulated Emission of Radiation) is transmitted in a narrow beam to illuminate corner cube retroreflectors on the satellite. The return signal, typically a few photons, is collected by a telescope and the time-of-flight is measured. Using information about the satellite's orbit, the time-of-flight, and the speed of light, the location of the ranging station can be determined. Similar data acquired by another station, many kilometers distant from the first, or on a different continent, can be used to determine the distance between stations to precisions of centimeters or better. Repetitive measurements over months and years yield the change in distance, or the motion of the Earth's crust.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -90 -180 90 180

    CDDIS Short Name: CDDIS_SLR_data Version ID: 1 Unique ID: C1000000041-CDDIS

  • CDDIS_SLR_predictions

    https://cmr.earthdata.nasa.gov/search/concepts/C1000000025-CDDIS.xml
    Description:

    Predicted satellite orbits for Satellite Laser Ranging (SLR) tracking of satellites equipped with corner cube retroreflectors. SLR stations download these prediction files and coordinate tracking schedules for satellite acquisition. The predicted orbit files typically contain orbit information for multiple days and are issued on a daily or sub-daily basis.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -90 -180 90 180

    CDDIS Short Name: CDDIS_SLR_predictions Version ID: 1 Unique ID: C1000000025-CDDIS

  • CEOS Cal Val Test Site - Algeria 3 - Pseudo-Invariant Calibration Site (PICS)

    https://cmr.earthdata.nasa.gov/search/concepts/C1220567099-USGS_LTA.xml
    Description:

    On the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) formulated the following recommendation during the plenary session held in China at the end of 2004, with the goal of setting-up and operating an internet based system to provide sensor data, protocols and guidelines for these purposes: Background: Reference Datasets are required to support the understanding of climate change and quality assure operational services by Earth Observing satellites. The data from different sensors and the resulting synergistic data products require a high level of accuracy that can only be obtained through continuous traceable calibration and validation activities. Requirement: Initiate an activity to document a reference methodology to predict Top of Atmosphere (TOA) radiance for which currently flying and planned wide swath sensors can be intercompared, i.e. define a standard for traceability. Also create and maintain a fully accessible web page containing, on an instrument basis, links to all instrument characteristics needed for intercomparisons as specified above, ideally in a common format. In addition, create and maintain a database (e.g. SADE) of instrument data for specific vicarious calibration sites, including site characteristics, in a common format. Each agency is responsible for providing data for their instruments in this common format. Recommendation : The required activities described above should be supported for an implementation period of two years and a maintenance period over two subsequent years. The CEOS should encourage a member agency to accept the lead role in supporting this activity. CEOS should request all member agencies to support this activity by providing appropriate information and data in a timely manner. Pseudo-Invariant Calibration Sites (PICS): Algeria 3 is one of six CEOS reference Pseudo-Invariant Calibration Sites (PICS) that are CEOS Reference Test Sites. Besides the nominally good site characteristics (temporal stability, uniformity, homogeneity, etc.), these six PICS were selected by also taking into account their heritage and the large number of datasets from multiple instruments that already existed in the EO archives and the long history of characterization performed over these sites. The PICS have high reflectance and are usually made up of sand dunes with climatologically low aerosol loading and practically no vegetation. Consequently, these PICS can be used to evaluate the long-term stability of instrument and facilitate inter-comparison of multiple instruments.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: 29.09 5.22 31.36 10.01

    USGS_LTA Short Name: CEOS_CalVal_Test_Sites-Algeria3 Version ID: Not provided Unique ID: C1220567099-USGS_LTA

  • CEOS Cal Val Test Site - Algeria 5 - Pseudo-Invariant Calibration Site (PICS)

    https://cmr.earthdata.nasa.gov/search/concepts/C1220567104-USGS_LTA.xml
    Description:

    On the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) formulated the following recommendation during the plenary session held in China at the end of 2004, with the goal of setting-up and operating an internet based system to provide sensor data, protocols and guidelines for these purposes: Background: Reference Datasets are required to support the understanding of climate change and quality assure operational services by Earth Observing satellites. The data from different sensors and the resulting synergistic data products require a high level of accuracy that can only be obtained through continuous traceable calibration and validation activities. Requirement: Initiate an activity to document a reference methodology to predict Top of Atmosphere (TOA) radiance for which currently flying and planned wide swath sensors can be intercompared, i.e. define a standard for traceability. Also create and maintain a fully accessible web page containing, on an instrument basis, links to all instrument characteristics needed for intercomparisons as specified above, ideally in a common format. In addition, create and maintain a database (e.g. SADE) of instrument data for specific vicarious calibration sites, including site characteristics, in a common format. Each agency is responsible for providing data for their instruments in this common format. Recommendation : The required activities described above should be supported for an implementation period of two years and a maintenance period over two subsequent years. The CEOS should encourage a member agency to accept the lead role in supporting this activity. CEOS should request all member agencies to support this activity by providing appropriate information and data in a timely manner. Pseudo-Invariant Calibration Sites (PICS): Algeria 5 is one of six CEOS reference Pseudo-Invariant Calibration Sites (PICS) that are CEOS Reference Test Sites. Besides the nominally good site characteristics (temporal stability, uniformity, homogeneity, etc.), these six PICS were selected by also taking into account their heritage and the large number of datasets from multiple instruments that already existed in the EO archives and the long history of characterization performed over these sites. The PICS have high reflectance and are usually made up of sand dunes with climatologically low aerosol loading and practically no vegetation. Consequently, these PICS can be used to evaluate the long-term stability of instrument and facilitate inter-comparison of multiple instruments.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: 29.24 -1.32 32.79 4.24

    USGS_LTA Short Name: CEOS_CalVal_Test_Sites-Algeria5 Version ID: Not provided Unique ID: C1220567104-USGS_LTA

  • CEOS Cal Val Test Site - Dome C, Antarctica - Instrumented Site

    https://cmr.earthdata.nasa.gov/search/concepts/C1220566821-USGS_LTA.xml
    Description:

    On the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) formulated the following recommendation during the plenary session held in China at the end of 2004, with the goal of setting-up and operating an internet based system to provide sensor data, protocols and guidelines for these purposes: Background: Reference Datasets are required to support the understanding of climate change and quality assure operational services by Earth Observing satellites. The data from different sensors and the resulting synergistic data products require a high level of accuracy that can only be obtained through continuous traceable calibration and validation activities. Requirement: Initiate an activity to document a reference methodology to predict Top of Atmosphere (TOA) radiance for which currently flying and planned wide swath sensors can be intercompared, i.e. define a standard for traceability. Also create and maintain a fully accessible web page containing, on an instrument basis, links to all instrument characteristics needed for intercomparisons as specified above, ideally in a common format. In addition, create and maintain a database (e.g. SADE) of instrument data for specific vicarious calibration sites, including site characteristics, in a common format. Each agency is responsible for providing data for their instruments in this common format. Recommendation : The required activities described above should be supported for an implementation period of two years and a maintenance period over two subsequent years. The CEOS should encourage a member agency to accept the lead role in supporting this activity. CEOS should request all member agencies to support this activity by providing appropriate information and data in a timely manner. Instrumented Sites: Dome C, Antarctica is one of eight instrumented sites that are CEOS Reference Test Sites. The CEOS instrumented sites are provisionally being called LANDNET. These instrumented sites are primarily used for field campaigns to obtain radiometric gain, and these sites can serve as a focus for international efforts, facilitating traceability and inter-comparison to evaluate biases of in-flight and future instruments in a harmonized manner.  In the longer-term it is anticipated that these sites will all be fully automated and provide surface and atmospheric measurements to the WWW in an autonomous manner reducing some of the cost of a manned campaign, at present three can operate in this manner.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -76.6 123 -74.5 131.18

    USGS_LTA Short Name: CEOS_CalVal_Test_Site-Dome_C-Antarctica Version ID: Not provided Unique ID: C1220566821-USGS_LTA

  • CEOS Cal Val Test Site - Dunhuang, China - Instrumented Site

    https://cmr.earthdata.nasa.gov/search/concepts/C1220566840-USGS_LTA.xml
    Description:

    On the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) formulated the following recommendation during the plenary session held in China at the end of 2004, with the goal of setting-up and operating an internet based system to provide sensor data, protocols and guidelines for these purposes: Background: Reference Datasets are required to support the understanding of climate change and quality assure operational services by Earth Observing satellites. The data from different sensors and the resulting synergistic data products require a high level of accuracy that can only be obtained through continuous traceable calibration and validation activities. Requirement: Initiate an activity to document a reference methodology to predict Top of Atmosphere (TOA) radiance for which currently flying and planned wide swath sensors can be intercompared, i.e. define a standard for traceability. Also create and maintain a fully accessible web page containing, on an instrument basis, links to all instrument characteristics needed for intercomparisons as specified above, ideally in a common format. In addition, create and maintain a database (e.g. SADE) of instrument data for specific vicarious calibration sites, including site characteristics, in a common format. Each agency is responsible for providing data for their instruments in this common format. Recommendation : The required activities described above should be supported for an implementation period of two years and a maintenance period over two subsequent years. The CEOS should encourage a member agency to accept the lead role in supporting this activity. CEOS should request all member agencies to support this activity by providing appropriate information and data in a timely manner. Instrumented Sites: Dunhuang, China, is one of eight instrumented sites that are CEOS Reference Test Sites. The CEOS instrumented sites are provisionally being called LANDNET. These instrumented sites are primarily used for field campaigns to obtain radiometric gain, and these sites can serve as a focus for international efforts, facilitating traceability and inter-comparison to evaluate biases of in-flight and future instruments in a harmonized manner.  In the longer-term it is anticipated that these sites will all be fully automated and provide surface and atmospheric measurements to the WWW in an autonomous manner reducing some of the cost of a manned campaign, at present three can operate in this manner.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: 39 91.98 41.45 96.52

    USGS_LTA Short Name: CEOS_CalVal_Test_Site-Dunhuang-China Version ID: Not provided Unique ID: C1220566840-USGS_LTA

  • CEOS Cal Val Test Site - Frenchman Flat, USA - Instrumented Site

    https://cmr.earthdata.nasa.gov/search/concepts/C1220566808-USGS_LTA.xml
    Description:

    On the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) formulated the following recommendation during the plenary session held in China at the end of 2004, with the goal of setting-up and operating an internet based system to provide sensor data, protocols and guidelines for these purposes: Background: Reference Datasets are required to support the understanding of climate change and quality assure operational services by Earth Observing satellites. The data from different sensors and the resulting synergistic data products require a high level of accuracy that can only be obtained through continuous traceable calibration and validation activities. Requirement: Initiate an activity to document a reference methodology to predict Top of Atmosphere (TOA) radiance for which currently flying and planned wide swath sensors can be intercompared, i.e. define a standard for traceability. Also create and maintain a fully accessible web page containing, on an instrument basis, links to all instrument characteristics needed for intercomparisons as specified above, ideally in a common format. In addition, create and maintain a database (e.g. SADE) of instrument data for specific vicarious calibration sites, including site characteristics, in a common format. Each agency is responsible for providing data for their instruments in this common format. Recommendation : The required activities described above should be supported for an implementation period of two years and a maintenance period over two subsequent years. The CEOS should encourage a member agency to accept the lead role in supporting this activity. CEOS should request all member agencies to support this activity by providing appropriate information and data in a timely manner. Instrumented Sites: Frenchman Flat, USA is one of eight instrumented sites that are CEOS Reference Test Sites. The CEOS instrumented sites are provisionally being called LANDNET. These instrumented sites are primarily used for field campaigns to obtain radiometric gain, and these sites can serve as a focus for international efforts, facilitating traceability and inter-comparison to evaluate biases of in-flight and future instruments in a harmonized manner.  In the longer-term it is anticipated that these sites will all be fully automated and provide surface and atmospheric measurements to the WWW in an autonomous manner reducing some of the cost of a manned campaign, at present three can operate in this manner.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: 36.7 -115.9 36.9 -115.8

    USGS_LTA Short Name: CEOS_CalVal_Test_Site-Frenchman_Flat-USA Version ID: Not provided Unique ID: C1220566808-USGS_LTA